Too busy planning that Memorial Day barbeque to check out this weekend's entertainment news? No need to worry. We've got the latest on Kim Kardashian and fiancée Kris Humphries' Monte Carlo excursion, Sean Kingston's jet ski accident and Lindsay Lohan's first days of house arrest.

• Following their engagement announcement, Kim Kardashian and Kris Humphries jetted off to Monte Carlo to make their grand debut.

• Lindsay Lohan puffed away on electronic cigarettes and sifted through scripts during her first days of house arrest.

• Sean Kingston is recovering in a Miami hospital, after crashing his jet ski Sunday evening.

• The Hangover Part II ruled the box office Memorial Day weekend, raking in $86.5 million. Kung Fu Panda 2 followed in the second spot with $48 million and Pirates of the Caribbean: On Stranger Tides grabbed third at $39.3 million.

• Orlando Bloomsigned on to join the cast of the Hobbit, in which he will play his Lord of the Rings character, Legolas. Also, the films got names.

• Speaking of movies, check out the five things you need to know about Green Lantern before you see it.